#!/bin/sh
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA


# Extract metric names (or likely looking ones) from pmieconf files
# In comparison to the tools/xtractnames version, this one is a little
# more context sensitive, and not PMNS-driven
#

for d in ../include ../../include /etc
do
    if [ -f $d/pcp.conf ]
    then
	. $d/pcp.conf
	break
    fi
done

if [ -n "$PCP_TMPFILE_DIR" -a -d "$PCP_TMPFILE_DIR" ]
then
    tmp=`mktemp -d "$PCP_TMPFILE_DIR/pmieconf-xtract.XXXXXXXXX"` || exit 1
else
    # assume run during a build and /tmp is a safe bet
    #
    tmp=`mktemp -d "/tmp/pmieconf-xtract.XXXXXXXXX"` || exit 1
fi

trap "rm -rf $tmp; exit" 0 1 2 3 15

_usage()
{
    echo "Usage: xtractnames [file ...]"
}

while getopts "?" c
do
    case $c
    in
	?)
	    _usage
	    exit 1
	    ;;
    esac
done
shift `expr $OPTIND - 1`

if [ $# -eq 0 ]
then
    # no args, from stdin
    cat >$tmp/in
    set -- $tmp/in
fi

for file
do
    awk <$file '
/^[ 	]*predicate[ 	]*=/	{ want = 1 }
/^[ 	]*enabled[ 	]*=/	{ exit }
want == 1			{ print }' \
    | tr -cs 'a-zA-Z0-9_.' '[\012*]' \
    | grep '[a-zA-Z].*\.[a-zA-Z0-9_]'
done \
| $PCP_SORT_PROG -u

exit
